This is a circuit diagram of FM microphone speak in microphone and hear your voice on FM receiver. The circuit contains microphone preamp for increasing the signal of weak sounds. If you wind the coil correctly then the circuit will perform very well. Make coil L1 accurately as shown in diagram. If you want good speech quality use ceramic or crystal microphone...
Here is a transistor FM tracking transmitter. The FM tracking transmitter mentioned before in this website was built with LM 3909 IC...
Here is a schematic of a FM tracking transmitter circuit. The circuit can be operated with 1.5V battery (any size) and it will last longer because the current consumption of the circuit is only 3.7mA....
A very good designed circuit of an fm transmitter to broadcast your music or voice around the house and yard. There are many circuits of fm transmitter on internet but some are very big circuits containing lots of coils and components, some drift their frequency, some eats battery very fast, some are small low power but not perform well and range is very short. This circuit is not only long range as compare to other 3 to 5 volt fm transmitters but also very stable and energy saver...
This is a circuit of battery less fm transmitter, the circuit is same as we discussed before in "Best FM Transmitter Topic" but we changed the power source from 3 volt battery to solar cell. The circuit will work in direct sun light, use small solar cell of 3 volt to 5 volts 100mA also experiment with different types of solar cell of 3 to 5 volts or above in direct and indirect sunlight...
Many times we want to make fm transmitter which is simple to build and has a good range. So here is a simple fm transmitter circuit which contains only few components and also has long range...
Here is a good long range FM transmitter circuit diagram with minimum components but will give a good result. This FM RF transmitter circuit has two stages first oscillator stage and second RF amp stage...
Here is a 1.5V FM transmitter circuit diagram. This circuit can broadcast your voice around your house. We can also say it whole house FM transmitter...
The circuit mentioned here is a bird microphone transmitter or wireless bird listening microphone which will help you to listen the birds voices...
Here is a schematic which can be used as car mp3 FM transmitter circuit which can broadcast your mp3 player audio on your car FM radio...
A circuit of fm transmitter which has minimum components and simple to make. This is a powerful fm transmitter and its output is between 0.5 watt to 2watt...
Schematic of a extremely well and crystal clear sound FM stereo transmitter circuit for broadcasting CD quality music on FM band. lt will transmit your walkman, computer, iPod, discman, TV...
This is a circuit of a simple fm telephone transmitter which will transmit the telephone conversation to any fm receiver. Q1 is 2SA933 Transistor, diode D1 to D4 are...
This is a schematic of a simple FM tx / FM transmitter circuit using only eight components. It is a good quality fm transmitter and able to transmit at a distance of 50 meters...
The rf circuit shown below is a mini stable FM transmitter which is using a zener diode to provide accurate voltage to the oscillator while the battery runs down...
This is a schematic of a simple FM tx / FM transmitter circuit using only eight components. It is a good quality fm transmitter and able to transmit at a distance of 50 meters...
This is an another technique to make an stable FM transmitter using LM2936 voltage regulator IC. The stable FM transmitter circuit mentioned before was using...
This 3 stage FM transmitter can be use if you want a long range with less power for example 1.5V or 3V. The circuit is consist of three stages first audio preamplifier...
This is a long range stable FM transmitter circuit. The circuit is using a LM2950 5V voltage regulator IC comes in TO 92 transistor package, which will provide...
